CVE-2025-25279

Critical

Description

Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a specially crafted import archive in Boards.

SeverityCritical
CVSS9.9
Exploit probability98. percentile24.2%
ProductMattermost Server
PublishedFeb 24, 2025
First seenFeb 24, 2025

How to fix

Update
  • mattermost mattermost_server9.11.8, 10.2.3, 10.3.3, 10.4.2 or later
  • github.com/mattermost/mattermost/server/v88.0.0-20250122165010-4ed702ccff4e, 9.11.8, 10.2.3, 10.3.3, 10.4.2 or later
  • github.com/mattermost/mattermost-server9.11.8+incompatible, 10.2.3+incompatible, 10.3.3+incompatible, 10.4.2+incompatible or later

Affected products

ProductAffected versionsFixed in
mattermost mattermost_server9.11.0 ≤ v < 9.11.8, 10.2.0 ≤ v < 10.2.3, 10.3.0 ≤ v < 10.3.3, 10.4.0 ≤ v < 10.4.29.11.8, 10.2.3, 10.3.3, 10.4.2
github.com/mattermost/mattermost/server/v8Gov < 8.0.0-20250122165010-4ed702ccff4e, 9.11.0-rc1 ≤ v < 9.11.8, 10.2.0-rc1 ≤ v < 10.2.3, 10.3.0-rc1 ≤ v < 10.3.3, 10.4.0-rc1 ≤ v < 10.4.28.0.0-20250122165010-4ed702ccff4e, 9.11.8, 10.2.3, 10.3.3, 10.4.2
github.com/mattermost/mattermost-serverGo9.11.0-rc1+incompatible ≤ v < 9.11.8+incompatible, 10.2.0-rc1+incompatible ≤ v < 10.2.3+incompatible, 10.3.0-rc1+incompatible ≤ v < 10.3.3+incompatible, 10.4.0-rc1+incompatible ≤ v < 10.4.2+incompatible9.11.8+incompatible, 10.2.3+incompatible, 10.3.3+incompatible, 10.4.2+incompatible
github.com/mattermost/mattermost-server/v5GoNo range specified—
github.com/mattermost/mattermost-server/v6GoNo range specified—

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CVE-2025-25279 · Mattermost Server · Dark Radar